Hoisting-crane or stacker



R. K. ADAMS.

HOISTING CRANE 0R STACKER.

APrucAnoN man SEPT. 2o, |919.

1,353,697. v menteuse... 21.1920.

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Wiiness es ",l .we/vwo@ /fdywu i Fayman [AanLzs R. K. ADAMS.

HOISTING CRANE 0R STACKEH.

APPLxcATIoN FILED SEPT. 2o, 1919.

1,353,697. Patentedsept 21,1920.y

5 SHEETS-SHEET 2.

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R.4 K. ADAMS.

Hollsrms CRANE on STICKER.

APPLICATION FILED SEPT. 20, I9I9.

' llatentedSept. 21, 1920.

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/Vznesses FaymdzmS R. K. ADAMS.

HOISTING CRANE 0R STACKER.

APPLICATION man SEPT. 2o, |919.

1,353,697. Panasept. 21,1920. I

5 SHEETS-SHEET 4.

v wvc/w/O'b 2f. Raymond KAdam.;

mty/WMA /Viinesses R. KLADAMS.

HOISTING CRANE 0R STACKER.

APPLICATION FILED SEPT. 2o, 1919.

Patented sept. 21,1920.

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RAYMOND K. ADAivrs, orv pwYEa, wronrne.

I-IOISTING-CRANE STACKER.

Specification of Letters Patent.

nella@ een. i920.

Application filed September 20, 1919. Serial No. 325,089.

T 0 all 'whom t may concern Be it known that l, RAYMOND K. ADAMs, a citizen of the United States, residing at Dwyer, in the county of Platte and State of l/Vyoming, have invented new and useful improvements in l-loisting- Cranes or Stackers,` of which the following is a specification. i

The object of the invention is to provide a simple and relatively inexpensive andeflicient portable hoisting crane or stacker, adapted for general use on a farm yand in handling machineryr and other heavy obvjects in loading, unloading and the like, the parts being so related as to-facilitate the control and operation thereof with the minimum number of attendants and with the minimum effort on their part. Y

With these and related objects in view, the invention consists in a construction, combination and relation of parts hereinafter specifically set forth, it being understood that changes in the form, proportion and de tails may be resorted to within the scope of theappended claims without departing from the spirit of the invention.

In the drawings:

Figure 1 is a side view of the apparatus;

Fig. 2 is an end view of the same;

Fig. 3 is a plan view, the crane arm be ing omitted; Y

Fig. l is a plan view of the crane arm and related parts;

Fig. 5 is a detail view partly in section of the lower portion of the crane post and the' connections therewith including the means whereby the crane is locked in its adjusted position;

Fig. 6 is a detail plan view of the locking mechanism and related parts, the post being shown in transverse section on the plane indicated by the line 6-6 of Fig. 5;

Fig. 7 is a detail view of a jack used in raising and lowering the front end of the base of the crane in connection with the re moval and replacement of the front wheels thereof;

Fig. 8 is a plan view of a modified form of device for locking the crane in its adjusted position;

Fig. 9 is a detailV view of the outer 4end of the crane arm and the guides for the hoisting cable.

Fig. l0 is a` detail view of the lock for securing the running pulley in its elevated position;

front and rear wheels 2lv and 22 of which' the former are preferably removed when the crane is to-be used, and holes are dug in the ground for lthe rear wheels so as to bring the bottom ofthe base into ycontact with theground and 'thus afford a firm foundationlforthe structure. Rising fromia cen.n

tral steering block or turn table 23fis the l crane post 24;, preferably' of tubular.` construction, and having bearing rollers 25 at'v its lower'end so as to facilitate the turn! ing'thereof. This crane post is held in an v upright position for revoluble movement by means of braces 26 which extend lupward from the Vcorners ofy the base frame and are connected at their upper ends to acollar 27 Vwithin which the post is turned. The

crane arm consists of a boom 28 having i lateral braces l29 which eXtend through'a collar 30, fitted upon the `post above the collar 27, said braces being arranged at either side ofthe plane ofthe boom so yas to permit of the passage therebetween of the hoisting cable 3l. A rear brace'32 extends to the rear end of the boom, and truss braces for the stiening of the boom consist of the thrusts 33 extendnig upwardly and outl wardly from vintermediate portions of the boomand vconnected by the extension rods 34. n

'The' hoisting .cable may be provided at the free end of the crane arm with the usual direction pulleys 35 and 36 and the traveling pulleys 37 which may be locked in its elevated position bya clutch mechanism as is now used in connection with hay links and the like, or such as indicated Figs. 9 and 10 of the drawings, a head 38 on the traveling pulleys being adapted for engagement by clamp members 39 which may be opened to release the head by means of a trip 40.

Near the lower yend of the crane post, the hoisting cable which passes downward therethrough after traversing a direction pulleyll is carried outward around a direction pulley 42 and around a traction'pulley 43 on one arm of a cross head 44 secured to the post, and thence to a drum 45 actuated by an engine 46 or similar suitable power mechanism, the hoisting mechanism including the drum and engine preferably being supported by a separate head 47 which while normally seated upon the base 2O is removable therefrom to permit of the use thereof independently of the crane.

From theother extremity of the cross head 44 an operating cable 48 extends through a guide 49 and thence to a drum 50, and by means of the relative operation of the drums 45 and 50 the load carrying pulley 37 being in its locked position, the crane post may be turned in either direction to move the crane arm so that the load may be deposited as may be desired.

1n connection with the above described mechanism there is employed locking means for securing the crane post with the crane arm in adjusted position, consisting for example of a stop rim 5l, secured in a fixed position to the base and having aplurality oi" seats or sockets 52 for engagement by latches 53 actuated respectively by springs 54 and carried by the arm 55 of a spider oit which the hub 56 is secured to the crane post in the plane of the stop rim. The latches are connected by draw rodsor wires 57 with a collar 58 which is mounted to slide upon the crane post and is adjustable by means of a lever 59 having shoes 60 to engage an annular groove 61 in said collar. The elevation oiC the collar by means of a hand lever 62 within easy reach of the operator, will withdraw the latches to release the crane post and permit of its rotary movement to swing the crane arm as may be. required through the agency oi' the drums 45 and 50 acting throughv the cables 31 and 48, and when the collar ispermitted to descend, the Nlatches engage in the sockets oi the stop rim and hold the crane in the position necessary for elevating or lowering the load carried by the hoisting cable. A modiiied construction of means for locking the crane in adjusted position best illustrated in Fig. 8, of the drawings, wherein the crane post 62 car 1ies radial arms 63 having terminal shoes 64 ,around which extends a straight band 65, adapted to be tightened or loosened by any suitable or well known means capable of operation at any point in the travel. of the crane arm through its arc which preferably is of an extent of approximately 180 degrees.

1n raising and lowering the front end of the crane in connection with the operations or" removing and replacing the front wheels, a jack as indicated in Fig. 7 may be employed the same consisting of a frame 6G supporting a direction pulley 67 around which may extend the cable 28 ordinarily connected with an arm of the cross head 44, after passing through a direction pulley 68 indicated in Figs. l and 3 and being terininally attached to the front cross beam ot the trame as at 69.

From the foregoing description it will be obvious that while a crane of the construction indicated may be readily transported from place to place, it being preferable to detach the crane arm during such movement, it may be readily manipulated in the elevation and handling of heavy loads as in stacking, moving machinery and the like, the means for elevating the load and swinging the crane arm being within the control of the operator through the agency provided for actuating the drums of which one controls the hoisting cable and operates solely as a part of the hoisting mechanism when the crane post is locked against revoluble movement.

Having described the invention what 1 claim as new is 1. A hoisting mechanism of the class described having a base, a crane post revolubly mounted thereon, a crane arm carried by the post, a hoisting cable, means for securing the post against revoluble movement, a cross head having at one end a guide for said hoisting cable, a supplemental cable connected with the other arm of the cross head, and hoisting mechanism having independent drums for said hoisting and said supplemental cables.

2. A hoisting mechanism of the class described having a base, a revoluble tubular crane post, a crane arm carried by the post, a hoisting cable extending through said crane post, and provided at its upper and lower ends with direction pulleys, a cross head having en one arm a guide pulley for said.v hoisting cable, a supplemental cable connected with the other arm of the cross head, locking mechanism for securing the crane post in its adjusted position against revoluble movement and hoisting mechanism including independent cables, independent drums respectively for said hoisting and supplemental cables.

3. A hoisting apparatus of the class described having a base, a revoluble crane post and a crane arm carried thereby, a hoisting cable, a cross head having one oi its arms provided with a guide for said hoisting cable, a supplemental cable connected with the other arm of the cross head, hoisting mechanism having reeling elements for respectively actuating said hoisting and supplemental cables and provided with a base removably mounted upon said rstmentioned base.

4. A hoisting mechanism of the class described, having a base, a crane post revolubly mounted upon the base, and supporting a crane arm, a hoisting cable, hoisting mechanism connected with the cable, a stop rim vdisposed eccentrically with relation to the crane post and provided with a plurality of.

seats or sockets, a spider carried by the post in the plane of the stop rim and provided with latches for engagement with said seats or sockets, a collar slidably mounted upon the crane post and connected with said latches and means for actuating said collar to withdraw the latches from engagement with said stop rim.

5. A hoisting mechanism of the class described having a base, a revoluble crane post mounted thereon, and carrying a crane arm, a hoisting cable, a cross head having at one end a guide for said hoisting cable, a supplemental cable connected with the other arms provided with terminal latches for en- Y gagement with said seatscor sockets, and a collar slidably mounted upon the crane `post and having connections with said latches for withdrawing the latter lfrom engagement with the stop rim.

In testimony whereof I aiX my signature.

RAYMOND lK. ADAMS. 

